N = 29;
x1 = [0,2,2,1];

n = 0:N-1;
if n<=15 & n>=0
    x2 = 1.02.^n;
    clconvt(x1,x2,N);
else
    x2 = 0.98.^n;
    clconvt(x1,x2,N);
end
